Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Visual and Verbal Communication (hierarchy name)
4. Exchange Media (hierarchy name)
5. exchange media (objects)
6. tokens (exchange media)
7. semi-monetary tokens

Anotations

Scope note:

Decorated, trapezoidal pieces of copper made by Northwest Coast Native North American tribes. Usually formed into two curved rectangular pieces visually joined by a raised T-shaped border in the middle of the piece; some coppers have thin, rectangular additions on one side. Usually decorated with clan crests by incision or repoussé. Historically were created as markers of status or for giving through potlatch ceremonies.